Selenium 有很多功能， 但其核心是 web 浏览器自动化的一个工具集，它允许用户模拟终端用户执行的常见活动；将文本输入到字段中，选择下拉值和复选框，并单击文档中的链接。 它还提供许多其他控件，比如鼠标移动、任意 JavaScript 执行等等。

虽然 Selenium 主要用于网站的前端测试，但其核心是浏览器用户代理库。本次来说说，Python使用Selenium调用Chrome浏览器并通过HTTP代理进行自动化测试：

白名单模式代码示例：

```python
from selenium import webdriver
from selenium.webdriver.chrome.service import Service

targetURL = "http://myip.ipip.net" #访问的目标站点
proxyAddr = "您的代理IP:端口号" 

if __name__ == '__main__':
  browser_location = r".\Chrome\chrome.exe" #指定浏览器路径位置
  driver_location = r".\Chrome\chromedriver.exe" #指定Driver路径位置

  option = webdriver.ChromeOptions()
  option.binary_location = browser_location #设置浏览器位置
  option.add_argument("--start-maximized") #窗口最大化运行
  option.add_argument('--proxy-server=%(server)s' % {"server": proxyAddr})

  driver = webdriver.Chrome(service=Service(driver_location), options=option)
  driver.get(targetURL)
  print(driver.page_source)

运行结果：

![](https://img-blog.csdnimg.cn/img_convert/50dd7ed1b647a5e4ea223dc5c64f7973.png)

## 账密模式代码如下：

​
from selenium import webdriver

from selenium.webdriver.chrome.service import Service

import string

import zipfile

targetURL = "http://d.qg.net/ip" #访问的目标站点

proxyHost = "您的代理IP"

proxyPort = "端口号"

authKey = "请改成您的Key"

password = "请改成您的AuthPwd"

账密模式

def create_proxy_auth_extension(proxy_host, proxy_port, proxy_username, proxy_password, scheme='http', plugin_path=None):

if plugin_path is None:

    plugin_path = r'./{}_{}_qgnet_proxyauth_plugin.zip'.format(proxy_username, proxy_password)

manifest_json = """

    {

        "version": "1.0.0",

        "manifest_version": 2,

        "name": "QG.NET Proxy",

        "permissions": [

            "proxy",

            "tabs",

            "unlimitedStorage",

            "storage",

            "",

            "webRequest",

            "webRequestBlocking"

        ],

        "background": {

            "scripts": ["background.js"]

        },

        "minimum_chrome_version":"22.0.0"

    }

    """

background_js = string.Template(

    """

    var config = {

        mode: "fixed_servers",

        rules: {

            singleProxy: {

                scheme: "${scheme}",

                host: "${host}",

                port: parseInt(${port})

            },

            bypassList: ["localhost"]

        }

      };

    chrome.proxy.settings.set({value: config, scope: "regular"}, function() {});

    function callbackFn(details) {

        return {

            authCredentials: {

                username: "${username}",

                password: "${password}"

            }

        };

    }

    chrome.webRequest.onAuthRequired.addListener(

        callbackFn,

        {urls: [""]},

        ['blocking']

    );

    """

).substitute(

    host=proxy_host,

    port=proxy_port,

    username=proxy_username,

    password=proxy_password,

    scheme=scheme,

)

with zipfile.ZipFile(plugin_path, 'w') as zp:

    zp.writestr("manifest.json", manifest_json)

    zp.writestr("background.js", background_js)

return plugin_path

if name == 'main':

# browser_location = r"C:\Users\Administrator\Desktop\Chrome\chrome.exe"  # 指定浏览器路径位置

driver_location = r"C:\Users\Administrator\Desktop\Chrome\chromedriver.exe"  # 指定Driver路径位置

proxy_auth_plugin_path = create_proxy_auth_extension(

    proxy_host=proxyHost,

    proxy_port=proxyPort,

    proxy_username=authKey,

    proxy_password=password)

option = webdriver.ChromeOptions()

# option.binary_location = browser_location #设置浏览器位置

option.add_argument("--start-maximized") #窗口最大化运行

option.add_extension(proxy_auth_plugin_path) #添加proxy插件

driver = webdriver.Chrome(service=Service(driver_location), options=option)

driver.get(targetURL)

print(driver.page_source)

​

```

返回结果如下：